[1] Message Store Server (X.400)

[2] Management Support System

[3] Mass Storage System/Subsystem

[4] Message Storing/Switching System

[5] MAN Switching System - Leitungsvermittelnde Verbindung von Glasfaser-Metropolitan Networks der TELEKOM

[6] Maximum Segment Size

[7] Massena, NY, USA -internationale Fughafen-Kennung